Monday, 13 October 2014

electromagnetism - Inducing Current by Change in Magnetic Flux


Why does a 'change' in magnetic flux induce a current? If we consider a stationary charge placed in a magnetic field, the charge experiences no force (and hence no subsequent motion) due to the magnetic field as it does not have a magnetic field of its own (at least that's what my textbook says). So then, how can the simple change in magnetic field set a charge in motion.


I've seen an answer to the same question I've posed which says that a changing magnetic flux induces an electric field which sets the charges in motion. However, I've looked up another answer which strongly opposes this and talks about Jefimenko's equations (which I haven't understood in the least)


I don't want a mathematical explanation but rather a physical one based on classical mechanics. Something a beginner with basic knowledge of electric and magnetic fields would be able to understand. I know this is a hard ask so I appreciate all attempts made.




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